20211023023 has 2 divisors, whose sum is σ = 20211023024. Its totient is φ = 20211023022.

The previous prime is 20211023011. The next prime is 20211023047. The reversal of 20211023023 is 32032011202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20211023023 - 2⁵ = 20211022991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20211022988 and 20211023006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211023323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105511511 + 10105511512.

It is an arithmetic number, because the mean of its divisors is an integer number (10105511512).

Almost surely, 2^20211023023 is an apocalyptic number.

20211023023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211023023 is an equidigital number, since it uses as much as digits as its factorization.

20211023023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20211023023 its reverse (32032011202), we get a palindrome (52243034225).

The spelling of 20211023023 in words is "twenty billion, two hundred eleven million, twenty-three thousand, twenty-three".